Apparatus for use in making castings



Sept. 5, 1933. 1 R. NELSON APPARATUS FOR USE IN MAKING CASTINGS FiledJuly 24, 1930 Patented Slept. 1933 UNITED STATES APPARATUS Fon USE INMAKING' CASTINGS Lewen R. Nelson, Peoria, I'll.V

Application July 24, 1930. Serial No. 470,415

8 Claims.

This invention relates to apparatus for use in making castings,pertaining more particularly to apparatus for casting a hose fittingupon or in connection with an existent tting in a swiveled 5 inseparablerelation.

An object is that while permanently joining two swivel members bypouring one of them as molten metal into engagement with and havingswiveled connection with a companion member already existent, to socreate the mold for that purpose that when the casting operation iscomplete the swivel parts can be readily loosened and made free torotate with respect to each other.

A further object is to so construct the mold that the resultant castmember will have a taper at the point of swivel connection with theotheror existent member so that said members can be shifted relatively in adirection at right angles A still further object is to provide aiittingA of swiveled parts permanently connected as the result of themethod used and as a result of the type of mold employed.

That the invention may be fully understood, the accompanying drawing isprovided wherein:

Figure 1 is a sectional elevation of the mold by which the method to* bedescribed may be practiced.

Figure 2 is aiongitudinal section of` the con= nected members forming acomplete articleas, produced by my method, and n Figure 3 is likewise alongitudinal section of the connected parts of Figure 2 shown inslightly different positions relatively.

In my said pending application is shown a" method of connecting twomembers of a fitting by casting'one of such membersupon another alreadyexistent, together with provision for readily loosening them byproviding spacing parts of paper or the equivalent. In the presentapplication, however,rtapering surfacesare provided about which to pourVthemolten metal whereby to provide'for permitting the parts to beshifted endwise relatively as will appear.k

In the drawing 1 denotes a mold section having a bore 2 extending upthrough it toreceive a sleeve 3, therebeing a counter-bore or recess 5opening upon the upper surface of said section, the axes of the saidbore and counter-bore being' coincident, and said section 1 may restupona part 4for carrying said sleeve 3, which section 4,y in turn, maybe supported by a base member 6v as r a rest for a centering-pin or core7 to extend through said sleeve 3. Resting uponv the section 1 areplates 8 and 9 adapted for movement in.V their own planes to and fromeach other and adapted to abut at l0, each being provided with. a recess11, the recesses together forming,v a bore through which the pin or core7 extends, said bore being greater in diameter than that of said` pinand centered therewith. Above the plates and resting thereon are twoseparate sections 12, 13, in this instance, which abut at 14, and eachhas a groove l'which in the abutting relation of thesections form a borecoincident with the bore 2 of the section 1 and adapted to receive asleeve 16 whose bore is adapted to receive into it the upper end of thepin '7 in a snug sliding it. The sleeve 16 is slidable within the borecreated by the grooves 15 and it may have a series oi teeth 16' withwhich may mesh the teeth of a pinion 17 suitably mounted in the section12, for example, and operated by suitable means not shown.

It is observed that the sleeve 16 is reduced in diameter at its lowerend while the diameter of its bore is increased creating a shell portion2() to correspond with and to provide a cavity 21 in the casting to bemade, the latter being shown completed at 18 in Figures 2 and 3, tubularporn tions 22 and 23 of the casting thereby'resulting. It is noted,also, that the bore oiA the sections 12 and 13 has an enlarged cavity15' conforming to the flange 24 of themember 18, which, as is customaryin such devices'is shaped (not shown) to receive a wrench, not shown.Again, the two plates` 8, 9 at their upper sides adjacent their recesses11 are relieved tofcreate narrow flanges at 8', 9 at such recesses, theupper and lower surfaces of the iianges being parallel to the plane ofsuch plates and lie at right angle to the axis of the bore of the sleeve3. Said sleeve 3 terminates at its upper end within the counter-bore orrecess 5 of the section 1 and lies in spaced relation to the plates 8,9` aboutv as shown, and said upper end of the sleeve is counter-bored tocreate a recess 4', and the resulting flange 42 may be beveled onitsouter surface, said upper end of the sleeve forming a seat for metalto be poured. A

The purpose herein is to place in the mold described herein an existentor previously fabricated member and pour molten metal in connection withit, and to Vcreate the nished permanently connected parts of theswiveltting, and in addition, so form part of the mold and part of the saidexistentmember that upon vcompleting the casting operation the parts canbe readily separated to the extent that they can be made to freelyswivel on each other. To this end the bore of the flange 19 of theexistent member designated in all of the iigures at 19, is conical, thesmallest diameter thereof being at the outer or upper surface of saidflange, the dotted lines as in Figures 2 and 3 at cL--a best indicatingthe angle, which angle, of course, may be varied as desired. The saidmember or nut 19 :is adapted to lie within the recess 5, the depth ofwhich recess rnay be equal to the height of said nut, 0r substantiallyso, so that the outer or upper surface of the flange 1S will lie flushwith the upper surface ci the section l. it is observed that the borecreated by the recesses li of the plates 8, 9 is greater than thediameter of the pin 'l extending therethrough, as previously intimated,and that said bore conforms to that of the said flange 19 of the nutboth in sise and form in that the walls of the notches l1 forming thebore are beveled or coned and lie flush with the walls of the bore ofsaid flange as clearly shown in Figure l, it being seen that the plates8, 9 snugly abut upon the flange of said nut.

With the pin or core and the sleeve 3y in place in the section l, andthe plates 3, 9 and the sections l2 and 13 separated, and with thesleeve 16 withdrawn from the bore of said sections, the recess 5 liesexposed. into recess 'may now be placed the nut 1.9 previously threadedand ready for-ruse, and with the bore of its ilange made conical as e..plained, or about as shown. Saidnut is centered by the sleeve 3, itbeing observed that the latter extends up into said nut covering thethreaded portion and terminating in spaced relation to the inner side ofthe flange 19 leaving a recess b, the wall of which, where it abuts thesaid beveled ilange l2 of the sleeve 3 may be conical to fit said Theplates 8, 9 are now brought into abutment, as are also the sections 12,i3, following which action the sleeve 16 is lowered into proper positionover the pin or core '7, suitable stop or indication, not shown, beingemployed to limit that movement. The molten metal to create the member18 is new poured through any suitably located passage 3', for example,to fill the space provided for it, metal finding its way into the wholecavity and entering the recess b to form a flange 23 of the completedcasting 18 as in Figures 2 and 3, which flange is adapted to abut theinner side of the flange le of the nut 19 when in use.

It is now to be particularly noted that the plates 8, 9, which haveserved to separate the cast metal of the member 1.8 above the flanges8', 9 from the flange 19', by their presence in the casting operationcreated a space between both these members. In inalzing'the casting themetal will lill in around prin or core 'l and will enclose the shell 20of the sleeve lf3.V After the casting is made the said sleeve israised-by means of the pinion ll while the 'l may be driven down afterremoving the base 6 beneath it, the

, plates 8, 9 and the sections l2, 13 then being separated to releasethe casting.

Since the metal oi the tapered neck of the completed casting i3 lieswithin the flange 19', it will upon cooling naturally shrink inwardlyaway from the latter to some extent and yet may, perhaps, slightly stickor adhere to said flange as a natural consequence. l3nt due to theconical bore of the flange 19 and that formed by t le plates 8, 9 inabutment, and the resultant conical form of the casting the parts may bereadily separated in an endwise direction by striking upon the end ofone of them, which parts change their positions relatively appearing asin Figure 3, the flanges 19' and 23 moving toward each other i'or theirabutting relation in use.

1. Apparatus for casting a fitting in connection with an existentiitting including a mold section provided with a cavity, a sleeve seatedat one end in the cavity, its other end having a surface constituting aseat for the reception of molten metal, a core adapted to slidably 'tthe sleeve at that end having the seat and extending from the latter, atubular existent Fitting supported in the mold snugly encircling thesleeve and having a ange extending toward and encircling the core inspaced relation thereto and having spaced relation to and substantiallyparalleling the face of the seat providing a metal receptive space, apair of separable plates abutting at their ends, overlying the fittingand its flange and notched to forman opening, the walls of the openingenclosing the core in spaced relation thereto, and a mold section lyingupon the plates and having a cavity greater in diameter than the coreand receiving the said core into it.

2. Apparatus for casting a fitting in connection with an existentfitting including a mold section provided with a cavity, a sleeve seatedat one end in the cavity, its other end having a surface constituting aseat for the reception of molten metal, a core adapted to slidably fitthe sleeve at that end having the seat and extending from the latter, atubular existent fitting supported in the mold snugly encircling thesleeve and having a flange extending toward and encircling the core inspaced relation thereto and having spaced relation to and substantiallyparalleling the face of the seat providing a metal receptive space, apair of separable plates abutting at their ends, overlying the fittingand its flange and notched to form an' opening, the walls of the openingenclosing the core in spaced relation thereto, the cavity between theplates and core and the cavity between the ange and core being conical,the largest diameter of the same facing the seat, and a moldv sectionlying upon the plates and having a cavity greater in diameter than thecore and receiving the said core into it.

3. Apparatus for casting a iitting in connection with an existentiitting including a part having a cavity, a tubular member in the cavityhavingan end surfaceV constituting a seat for the reception of moltenmetal, a core slidably fitting the member projecting from the same, atubular `fitting snugly encircling the member and having a flangeextending toward and encircling the core in spaced relation thereto andin spaced relation to the seat providing a metal receptive space, a pairof plates abutting at their ends overlying the fitting and its ange andenclosing the core in spaced relation thereto, the cavity between theplates and core and the cavity between the iiange and core beingtapering with its largest diameter facing the seat, a mold section lyingupon the plates and having a cavity to receive the core, and a sleevefitting between the core and the last named mold section in the cavityof the latter and spaced at one end from the plates.

4. `Apparatus for casting a fitting inconnection with an existentfitting including a part hav-f` ing a cavity, a tubular member in thecavity having an end surface constituting a seat for the reception ofmolten metal, a core slidably fitting the member projecting from thesame, a tubular tting snugly encircling the member and having a iiangeextending toward and encircling the core in spaced relation thereto andin spaced relation to the seat providing a metal receptive space, a pairof plates abutting at their ends overlying the fitting and its ange andenclosing the core in spaced relation thereto, the cavity between theplates and core and the cavity beween the flange and core being taperingwith its largest diameter facing the seat, a mold section lying upon theplates and having a cavity to receive the core, and a sleeve fitting inthe cavity of the last named mold section around the core, part of saidsleeve having a lcavity adjacent said core, that portion of the sleevehaving the cavity lying nearest the plates.

5. An apparatus for casting a fitting in connection with an existentfitting comprising a pair of mold sections, a pair of abutting platesseparating said inold sections, a common core member extending throughboth of'said mold sections and through an opening between said abuttingplates, the walls of said opening being in spaced relation to said core,said lower mold section having a cavity, a sleeve, forming a part ofsaid lower mold section, surrounding said core and extending upwardlyinto said cavity, said sleeve having an annular seat formed on the uppersurface thereof surrounding said core and spaced therefrom, an existentitting seated in said cavity snugly fitting around said sleeve andhaving a flange extending toward the core and overhanging the seat andbeing in spaced relation to both the seat and the core and an opening inone of the mold sections for filling the cavity with molten metal. Y

6. An apparatus for casting a fitting in: connection with an existentfitting comprising a pair of mold sections, a pair of abutting platesseparating said mold sections, a common core extending through both saidmold sections and through an opening between said abutting plates, thewalls of said opening being in spaced relation to said core, said lowermold section having a cavity, a sleeve forming a part of said lower moldsection extending upwardly into said cavity snugly fitting around saidcore, said sleeve having an annular seat formed on'the upper surfacethereof spaced from said core, an existent fitting seated in said cavitysnugly fitting around said sleeve and having the upper surface thereofabutting snugly against the under surfaces of said abutting plates, andhaving at its upper end an inwardly extending flange overlying said seatand spaced from said seat and said core and an opening in one of themold sections for filling the cavity with molten metal.

7. An apparatus for casting a fitting in connection with an existentitting comprising a pair of mold sections, a pair of abutting platesseparating said mold sections, a common core member extending throughboth of said mold sections and through an opening between said abuttingplates, the walls of said opening being in spaced relation to said core,said lower mold section having a cavity, a sleeve forming a part of saidlower mold section surrounding said core and extending upwardly intosaid cavity, said sleeve having an annular seat formed on the uppersurface thereof surrounding said core and spaced therefrom, an existentfitting seated in` said cavity snugly fitting around said sleeve andhaving an annular flange at the upper end thereof extending inwardlytoward the core and overhanging the seat and being in spaced relationthereto, said overhanging iiange surface contiguous to and flush withthe inner surface of the opening between said abutting plates and anopening for introducing molten metal into said cavity.

8. An apparatus for casting a fitting in connection with an existenttting comprising a pair of mold sections, a pair of abutting platesseparating said mold sections, a common core member extending throughboth of said mold sections and through an opening between said abuttingplates, the walls of said opening being in spaced relation to said core,said lower mold section having a cavity, a sleeve forming a part of saidlower mold section surrounding said core and extending upwardly intosaid'cavity, said sleeve having an annular seat formed on the uppersurface thereof surrounding said core and spaced therefrom, an existentfitting seated in said cavity snugly fitting around said sleeve andhaving a flange extending toward the core and overhanging the seat andbeing in spaced relation to the seat and core the inner surface of saidflange being conical in form and having its larger diametervat its lowerend.

LEWEN R. NELSON.

